Magnetism Question 288

Question: The basic magnetization curve for a ferromagnetic material is shown in figure. Then, the value of relative permeability is highest for the point

Options:

A) P

B) Q

C) R

D) S

Show Answer

Answer:

Correct Answer: B

Solution:

[b] $ B={\mu _{0}}{\mu _{r}}H\Rightarrow {\mu _{r}}\propto \frac{B}{H} $ = slope of B-H curve According to the given graph, slope of the graph is highest at point Q.